"I think I've realized that in music and style, the classics always ring true," the "I Knew You Were Trouble" songstress, 22, tells Us. "Fads come and go, but I love looking at fashion 50 years ago for inspiration."

When it came time to shoot images for her mega-successful new album, Red, "the photographer Sarah Barlow, who's a friend of mine in Nashville, said, 'Why don't we just shoot you in what you've been wearing in your daily life lately?'"